With this method you set everyting regarding the GPU's and pool in the batch (.bat) file.

For this method to work you must have at least an empty config.txt file that looks like this:

{
}

You can of course set other parameters in the config file. (api, min hashing speed etc..)
If you want to set failover pools, you must do that in the pools config, because you can set only a main pool in the batch file.